Host Channel Adapter

Abbreviated as HCA, Host Channel Adapter is a network fabric interconnect based on InfiniBand technology (which provides the specification for the transmission of data between processors and I/O devices). It provides a computer with port connection to other InfiniBand devices. That port can be connected to another HCA, a target device, or an InfiniBand switch fabric that redirects the data coming in on one of its ports out to a device attached to another of its ports.

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